1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
// Copyright 2015 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <brillo/message_loops/glib_message_loop.h>
#include <fcntl.h>
#include <unistd.h>
#include <memory>
#include <base/bind.h>
#include <base/location.h>
#include <base/posix/eintr_wrapper.h>
#include <gtest/gtest.h>
#include <brillo/bind_lambda.h>
#include <brillo/message_loops/message_loop.h>
#include <brillo/message_loops/message_loop_utils.h>
using base::Bind;
namespace brillo {
using TaskId = MessageLoop::TaskId;
class GlibMessageLoopTest : public ::testing::Test {
protected:
void SetUp() override {
loop_.reset(new GlibMessageLoop());
EXPECT_TRUE(loop_.get());
}
std::unique_ptr<GlibMessageLoop> loop_;
};
// When you watch a file descriptor for reading, the guaranties are that a
// blocking call to read() on that file descriptor will not block. This should
// include the case when the other end of a pipe is closed or the file is empty.
TEST_F(GlibMessageLoopTest, WatchFileDescriptorTriggersWhenEmpty) {
int fd = HANDLE_EINTR(open("/dev/null", O_RDONLY));
int called = 0;
TaskId task_id = loop_->WatchFileDescriptor(
FROM_HERE, fd, MessageLoop::kWatchRead, true,
Bind([&called] { called++; }));
EXPECT_NE(MessageLoop::kTaskIdNull, task_id);
EXPECT_NE(0, MessageLoopRunMaxIterations(loop_.get(), 10));
EXPECT_LT(2, called);
EXPECT_TRUE(loop_->CancelTask(task_id));
}
// Test that an invalid file descriptor triggers the callback.
TEST_F(GlibMessageLoopTest, WatchFileDescriptorTriggersWhenInvalid) {
int fd = HANDLE_EINTR(open("/dev/zero", O_RDONLY));
int called = 0;
TaskId task_id = loop_->WatchFileDescriptor(
FROM_HERE, fd, MessageLoop::kWatchRead, true,
Bind([&called, fd] {
if (!called)
IGNORE_EINTR(close(fd));
called++;
}));
EXPECT_NE(MessageLoop::kTaskIdNull, task_id);
EXPECT_NE(0, MessageLoopRunMaxIterations(loop_.get(), 10));
EXPECT_LT(2, called);
EXPECT_TRUE(loop_->CancelTask(task_id));
}
} // namespace brillo
|
